In this Letter, we propose a novel implementation of continuous variable quantum key distribution that operates with a real local oscillator placed at the receiver site. In addition, pulsing of the continuous wave laser sources is not required, leading to an extraordinary practical and secure setup. It is suitable for arbitrary schemes based on modulated coherent states and heterodyne detection. The shown results include transmission experiments, as well as an excess noise analysis applying a discrete 8-state phase modulation. Achievable key rates under collective attacks are estimated. The results demonstrate the high potential of the approach to achieve high secret key rates at relatively low effort and cost.

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This book is a comprehensive survey of currently available models, assembled, kit, and homemade. In addition to the usual crystal and molecular models, atomic and molecular orbital and macromolecular models are covered. There is also a chapter on construction devices and techniques. The descriptions of individual models include the theoretical basis of the model, materials of construction, ease of assembly, areas of application, relative cost, and more. With coverage of this scope, the individual descriptions are necessarily brief, but numerous literature references supplement the material in the book.A useful feature is an appendix listing 70 manufacturers and distributers of models, kits, and construction materials, most located in the United States and England.